Tracing a killer

"While tasked with protecting Trevor Gage from a serial killer, K-9 officer Hannah Scott inadvertently puts a second cold case murderer on their trail. The man who drowned Hannah's childhood friend is back and he wants to make Hannah his next victim. Guarding Trevor becomes a survival mission once they both become the target of ruthless criminals. On a remote island with only each other to rely on, there's nowhere to run. And with twice the deadl...